Abstract
A method to obtain vanilla extracts with 1 fold of concentration from cured vanilla pods using a conventional microwaves oven is proposed. With this method it was possible to obtain vanilla extracts containing 0.20% of vanillin, in only three days. This value is higher than that established as minimum value by international norms (0.11%) for extracts of vanilla. In this study, irradiation time, no-irradiation time, power and volume of extractant were evaluated. The temperature of the extractant (64% ethanol) at different irradiation times and powers with the aim of avoiding evaporation of the solvent was evaluated. The optimum conditions were: 450 W of power and three cycles of 10s of irradiation and 60 s of no-irradiation twice daily for 3 days. The extraction efficiency increased 90% and the extraction time decreased 66% with respect to the conventional manual method.
Keywords: Conventional microwaves oven, cured vanilla beans, microwaves extraction, vanilla extracts, vanillin.
Graphical Abstract
Call for Papers in Thematic Issues
Microwave Technology: Advancements and Applications in Chemistry, Environment and Food Science
Microwave technology has emerged as a transformative tool in various fields, offering unique opportunities for rapid, efficient, and clean processes. This thematic issue aims to encapsulate the latest research, innovative strategies, and progressive methodologies concerning the application of microwave technology in three main areas: Chemistry: Highlighting the advancements in microwave-assisted ...read more
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